The level of genital protection when visiting a hooker in a third world country. Usually consisting of three condoms on the penis and several layers of cling film around the crotch area "just in case" resulting in a nappy shaped protective barrier.

Dean: Yeah boy! We gonna go down to Bangkok and fuck ourselves some katoey hookers tonight!

Nico: Man we better get our fuck nappies on, don't want to be bringing any shit back home to the wife!